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45 lines
1.2 KiB
Lua
45 lines
1.2 KiB
Lua
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-- example of how to run the ls command
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-- and pipe its output to the http user
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local unix = require "unix"
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function main()
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syscall = 'commandv'
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ls, errno = unix.commandv("ls")
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if ls then
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syscall = 'pipe'
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reader, writer, errno = unix.pipe()
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if reader then
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syscall = 'fork'
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child, errno = unix.fork()
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if child then
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if child == 0 then
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unix.close(1)
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unix.dup(writer)
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unix.close(writer)
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unix.close(reader)
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unix.execve(ls, {ls, "-Shal"})
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unix.exit(127)
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else
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unix.close(writer)
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SetStatus(200)
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SetHeader('Content-Type', 'text/plain')
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while true do
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data = unix.read(reader)
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if data ~= "" then
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Write(data)
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else
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break
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end
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end
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unix.close(reader)
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unix.wait(-1)
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return
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end
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end
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end
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end
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SetStatus(200)
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SetHeader('Content-Type', 'text/plain')
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Write(string.format('error %s calling %s()', unix.strerrno(errno), syscall))
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end
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main()
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